senate today voted overwhelmingly to take up a bill that could impose sales tax on all internet sales. today's vote clears the way for debate and attempts later this week. it would then go to the house of representatives. the bill would exempt online retailers with less than a million a year in sales. >>> protesters in san francisco used the annual environmental event as a call to arms. [ drums beating ] >> at the epa's regional headquarters, a diversion crowd of demonstrators spoke out against a variety of problems. they criticized the investigation into last summer's richmond refinery fire and also protested against hydraulic fracking for natural gas. >> we're here to ask the epa to stop the expansion of the toxic wasteland filling our town. >> these people are really frustrated. many of them low-income minority folks from the bay area that feel like there's too much pollution in the neighborhoods. >> the protesters then marched to the state department offices where they stepped up their protests to civil disobedience. the epa administrator said 40 years after the first earth day, t